Subscribe to io9's We Come From The Future here: http://www.youtube.com/subscription_c...We explore the microbiome with a homemade laser microscope in Esther Gets Experimental. Plus, scientists with the Human Microbiome Project have identified more than 5 million different microbial genes from 18 areas of the human body -- what does this mean for science fiction? We also ponder the news that Saturn's moon Titan may have a vast, underground ocean made of liquid water.